信号相位的测量在诸多领域的理论和工程上有很广阔的应用。
The measurement of signal phase is widely applied in many fields both on theory and engineering especially in the USBL underwater positioning system.
根据器件光伏信号强度和相位的测量结果,我们得到了该器件的能带结构图。
According to the photovoltaic spectrum, the energy band diagram of the photodetector is given.
激光相位多普勒(PDA)能够同时测量粒子的速度、大小和相对折射率。
Laser phase Doppler anemometry (PDA) technology can be used to measure moving particle's velocity, size and relative refractive index simultaneously.
结论流动液体模型证明磁共振相位对比技术是一种客观、准确的流体定量测量技术,可用于临床血流定量研究。
Conclusion Phase-contrast MR imaging is proved to be an accurate and practical flow measurement technique in flow phantom study and can be used in quantitative study of blood flow clinically.
在星载GPS载波相位测量中,周跳的探测与修复对最后的定位精度起着至关重要的作用。
In the course of satellite-borne GPS carrier phase measurement, cycle-slip detection and repair plays a very important role in the GPS station precision.
在某相位编码毫米波雷达系统中,要求很高的目标速度测量精度,因而目标多普勒频率测量电路的设计比较重要。
The design of target doppler frequency measurement circuit is very important in phase coded MMW radar system because of the high measurement precision requirement of target speed.
传统的相位差测量系统,因其工作的频段窄,测量精度低,已不能满足现代相控阵技术的要求。
With its narrow operating frequency scope and low measuring precision, traditional phase difference measuring system can 't satisfy the requirement of modern phase array technology.
相位解缠是SAR干涉测量数据处理中的一个关键步骤之一,解缠结果的好坏直接影响最终数字高程模型的精度。
Phase unwrapping is one of the key steps for the processing of InSAR data. The quality of the unwrapping results affects the final DEM directly.
在某相位编码毫米波雷达系统中,由于对目标速度测量精度的要求很高,因此目标多普勒频率测量电路的设计也具有比较重要的地位。
The design of target Doppler frequency measurement circuit is very important in phase-coded MMW radar system because of the high measurement precision requirement of target speed.
本文还介绍了基于相位测量技术的距离游标测距技术。
In addition, this paper presents the vernier technology based on the phase measurement.
对相位移测量技术中的条纹强度量化所引起的相位误差进行了定量研究。
The effect of the quantization of the fringe intensity on the phase error in phase shifting measurement is formulated.
评述了GPS技术目前存在的问题,包括与SLR测量之间存在的系统偏差、GPS技术本身可能存在的周年变化和GPS卫星天线相位中心的变化。
The main problems in GPS technology including the system bias to SLR, its own annual variety and the change of GPS satellite antenna phase center are also discussed.
建立高精度的相位-高度映射关系是结构光测量技术中的关键技术之一。
Establishing high precision phase-height mapping is one of the key techniques in structural light measurement system.
经过对菲涅耳菱体型相位延迟器件的测试,测量误差小于0.3%。
The retardation of the Fresnel rhomb phase retarder was measured with the measurement error less than 0.3%.
本文提出一种以离散余弦变换(DCT)为基础的自动相位测量方法并以实验和模拟运算进行验证。
A novel discrete cosine transform (DCT) based automated phase measurement method is proposed and verified by a simulation and experiments.
本文叙述了用频谱分析仪测量相位噪声的方法,步骤和应注意的问题。
This paper describes some methods, steps and attentions using a spectrum analyzer in phase noise measurement.
本文介绍利用频谱分析仪测量信号相位噪声的方法。
A method of how to measure the signal 's phase noise by spectrum analyzer is introduced.
介绍了相位差调制器及测量器的原理框图、主要性能指标及电路实现。
In this article, the schematic diagram, main specifications and the realization of the circuits of the phase differential modulator and measurer are described.
基于莫尔效应,本文提出了一种利用白光面光源进行双编码栅反向投影,以等位线条纹的形式测量物体相位变化的新方法。
Based on the Moire effect in shadow-casting of two coded masks a new kind of optical method is proposed to map phase variation on the object image with an extended incoherent illumination.
多波束测深系统中,相位检测法是实现超宽覆盖测量的关键技术之一。
In a multi, beam bathymetry system, phase detection is a key for achieving super, wide coverage.
相位差放大技术(PDA)是干涉测量领域里一种提高相位分辨率和测量精度的手段。
Phase difference amplification (PDA) was proposed as a means of improving phase resolution and accuracy in interferometric measurement.
针对与激励信号相位相关干扰背景下的信号测量,提出了一种新的方法。
A novel method on signal measurement in the presence of interferences phase correlating with excitation is proposed.
综合实验结果表明,这些电路设计对于提高相位式激光测距仪的测量精度是有效的。
The results of the experiment indicate that these circuit designs raise the measuring accuracy of the phase laser distance measuring system effectively.
为了提高FMCW雷达的距离测量精度,提出了一种基于差拍信号相位的距离估计方法。
The range measurement of the FMCW radar is based on the estimation of the frequency of the beat-note signal.
提出了一种具有高的时间和空间分辨率以及长的测量持续时间的动态波前相位测量方法。
A dynamic wavefront phase measurement with the features of high temporal and spatial resolution, and long measuring lasting time was proposed.
载波相位测量是目前测量精度最高的测量方法,所以载波相位差分gps同惯导组合能获得高精度的导航系统。
Carrier phase measurement is a measuring method of the highest precision at present. So, GPS carrier phase measurement integrated with INS can get high precision navigation system.
介绍了一台自制的利用相位差法测量光速的仪器的基本原理和方法,并通过对光在空气中的传播速度的测定,使大家对用相位变化测量光速仪器有所了解。
This article introduced the basic theory and method of measuring the velocity of light using the method of phase difference and how to measure the velocity of light using phase difference in air.
该算法的主要应用领域为卫星定位信号和直序扩频测距信号PN码相位的精确测量。
The algorithm is applicable to precise measuring of the PN code phase of satellite positioning signals and spread-spectrum ranging signals.
并从理论上证明了该方法的相位测量精度不受散离噪声极限的限制。
It has been theoretically demonstrated that the sensitivity of measurement can be beyond the shot -noise limit.
并从理论上证明了该方法的相位测量精度不受散离噪声极限的限制。
It has been theoretically demonstrated that the sensitivity of measurement can be beyond the shot -noise limit.
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